Chromium (hexavalent)
City of Galena Park
Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. Read more about chromium (hexavalent).
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.0402 ppb | 6 | 6 | 0.0316 ppb - 0.0508 ppb |
2015 | 0.0312 ppb | 10 | 8 | ND - 0.0502 ppb |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.02 ppb
The EWG Health Guideline of 0.02 ppb for chromium (hexavalent) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-11-17 | 4K21029-06 | 0.0508 ppb |
2014-11-17 | 4K21029-05 | 0.0399 ppb |
2014-11-17 | 4K21029-04 | 0.0460 ppb |
2014-11-17 | 4K21029-02 | 0.0344 ppb |
2014-11-17 | 4K21029-01 | 0.0316 ppb |
2014-11-17 | 4K21029-03 | 0.0383 ppb |
2015-02-09 | 5B11014-02 | 0.0363 ppb |
2015-02-09 | 5B11014-01 | 0.0344 ppb |
2015-05-27 | 5F03012-05 | 0.0458 ppb |
2015-05-27 | 5F03012-06 | 0.0502 ppb |
2015-05-27 | 5F03012-04 | ND |
2015-05-27 | 5F03012-03 | 0.0361 ppb |
2015-05-27 | 5F03012-02 | 0.0373 ppb |
2015-05-27 | 5F03012-01 | 0.0392 ppb |
2015-08-24 | 5H28016-02 | ND |
2015-08-24 | 5H28016-01 | 0.0329 ppb |